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Frequently Asked Questions: Philips HeartStart Batteries
Which battery fits the Philips HeartStart OnSite (HS1), Home, and FRx AEDs?
The Philips HeartStart M5070A (Part #989803121381) is the official OEM replacement battery designed for the Philips HeartStart OnSite (Model HS1), HeartStart Home AED, and HeartStart FRx defibrillators.
How long does a Philips HeartStart AED battery last?
Once installed in the defibrillator, an OEM Philips M5070A battery provides a 4-year operational standby life while powering daily automated self-tests. If kept in storage uninstalled, the battery includes an “Install Before” date stamped on the casing, typically 5 years from the date of manufacture.
How do I know when my Philips HeartStart AED battery is low or needs to be replaced?
Your Philips AED runs automated daily self-tests. When the battery charge becomes critically low, the flashing green “Ready” light will shut off, the unit will begin emitting an audible periodic beep or chirp, and pressing the blue Information (“i”) button will cause the machine to verbally announce “battery low.”